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Sync from rust 44cfafe2fafe816395d3acc434663a45d5178c41

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This commit is contained in:
bjorn3 2023-03-04 12:36:27 +01:00
commit cceea847dd
1 changed files with 30 additions and 31 deletions
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25
src/intrinsics/mod.rs
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@ -21,7 +21,8 @@ mod simd;
pub(crate) use cpuid::codegen_cpuid_call;
pub(crate) use llvm::codegen_llvm_intrinsic_call;
use rustc_middle::ty::layout::HasParamEnv;
use rustc_middle::ty;
use rustc_middle::ty::layout::{HasParamEnv, ValidityRequirement};
use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths};
use rustc_middle::ty::subst::SubstsRef;
use rustc_span::symbol::{kw, sym, Symbol};
@ -634,20 +635,17 @@ fn codegen_regular_intrinsic_call<'tcx>(
intrinsic_args!(fx, args => (); intrinsic);
let ty = substs.type_at(0);
let layout = fx.layout_of(ty);
let do_panic = match intrinsic {
sym::assert_inhabited => layout.abi.is_uninhabited(),
sym::assert_zero_valid => !fx
let requirement = ValidityRequirement::from_intrinsic(intrinsic);
if let Some(requirement) = requirement {
let do_panic = !fx
.tcx
.permits_zero_init(fx.param_env().and(ty))
.expect("expected to have layout during codegen"),
sym::assert_mem_uninitialized_valid => !fx
.tcx
.permits_uninit_init(fx.param_env().and(ty))
.expect("expected to have layout during codegen"),
_ => unreachable!(),
};
.check_validity_requirement((requirement, fx.param_env().and(ty)))
.expect("expect to have layout during codegen");
if do_panic {
let layout = fx.layout_of(ty);
let msg_str = with_no_visible_paths!({
with_no_trimmed_paths!({
if layout.abi.is_uninhabited() {
@ -667,6 +665,7 @@ fn codegen_regular_intrinsic_call<'tcx>(
return;
}
}
}
sym::volatile_load | sym::unaligned_volatile_load => {
intrinsic_args!(fx, args => (ptr); intrinsic);